Steller's Sea Cow (IMAGE) University of California - Santa Cruz Caption An illustration of the now extinct Steller’s sea cow based on Steller’s description from 1741. Credit R. Ellis Usage Restrictions For use only with news coverage of this research License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.